As long as it is strong enough....good to go. One thing to note for that application (you may already know this): That cable needs to be free to rotate some to allow the locking carabiner and the parallel plates on the mini-trax to freely move as you haul. If the plates are too constrained, the carabiner will torque the plates and can allow the rope to jump off the pulley and jam (kind of hard for me to describe without visual aids). This is one reason people generally use slings on the mini and pro-trax and do not clip them straight onto a bolt. A symmetrical carabiner is also very helpful. So hopefully that swagged cable will allow adequate rotation.

Thanks for the input, I'm glad to be getting the feedback. The breaking strength on the cable I used is 1,700lbs with a safe working load limit of 350lbs.

I feel that strength is adequate, figuring a max haul weight of say 200lbs, less than 60% of the safe working load giving me a 40% safety factor. My math may be slightly off but you can see my thought process.... The cable does have some easy rotation to it by nature, clearly no more than 1/4 turn... I have also made a duplicate cable with the eyes rendered perpendicular to each other in case the system tends to twist more than expected...

Thanks again for the feedback. I was afraid I would get zero feedback...

Thanks for the input, I'm glad to be getting the feedback. The breaking strength on the cable I used is 1,700lbs with a safe working load limit of 350lbs.

I feel that strength is adequate, figuring a max haul weight of say 200lbs, less than 60% of the safe working load giving me a 40% safety factor. My math may be slightly off but you can see my thought process.... The cable does have some easy rotation to it by nature, clearly no more than 1/4 turn... I have also made a duplicate cable with the eyes rendered perpendicular to each other in case the system tends to twist more than expected...

Thanks again for the feedback. I was afraid I would get zero feedback...

And if you screw something up and the 200lb haul bag drops the length of its tether - say 5' - directly onto your DIY thingy....?

This 'draw' will only be in use during the process of hauling, the haul line will of course be backed up to the anchor, Once the haul bags reach the belay station they will be docked and this hauling system disconnected and stowed until needed for the next haul.

It is not intended for use in docking or anchoring bags to belay station.

Thanks for the input, I'm glad to be getting the feedback. The breaking strength on the cable I used is 1,700lbs with a safe working load limit of 350lbs.

I feel that strength is adequate, figuring a max haul weight of say 200lbs, less than 60% of the safe working load giving me a 40% safety factor. My math may be slightly off but you can see my thought process.... The cable does have some easy rotation to it by nature, clearly no more than 1/4 turn... I have also made a duplicate cable with the eyes rendered perpendicular to each other in case the system tends to twist more than expected...

Thanks again for the feedback. I was afraid I would get zero feedback...

When you haul it, it's holding 200 lbs on the haul side and 200 lbs on the bag side. That's 400 lbs.

I'm not using this as support for my hoisting pulley. This is simply support for the progress capture pulley, whenever the bag is in moving upward there is zero weight on this draw, the only time there are any forces on this draw is when the bag is motionless and the hauling system is being reset...

I'm not claiming to be reinventing the wheel here.... PTPP uses a frost power draw the same way I do, I simply made my own and added rope sheaths to the eyes to prevent the cable from digging into the softer aluminum of the locker.

Perhaps I will increase the size of the cable to 5/32" resulting in a 2500lbs breaking strength, or roughly 10kn... The same rating as the Frost powerdraw....

I'd definitely post this question to the people on Bigwalls.net or Supertopo, you'll probably get better responses. Also PTPP is not using a Trax, I'm pretty sure he loathes the things and refuses to use them. So his setup (Kong Block Roll, I think) would not have nearly the rotation worries that you might have with a Trax. I'm still interested though, what is the benefit over using a sling?

I'm not using this as support for my hoisting pulley. This is simply support for the progress capture pulley.

If it blows while hauling 2:1 you'll get sucked up into the other pulley but at least you won't lose the bag. However you can't safely switch over to 1:1 hauling with this arrangement without some amount of re-rigging. On top of that the strength of your cable sling depends on your swages. How have you tested them?

The benifit over using a regular sling is not having to double or triple up the sling to shorten it, it also eliminates the rubbing friction of sling in sling (when doubled or tripled) also eliminates having to inspect said sling for wear caused by shortening it, lastly it minimizes the CF factor of cramming a shortened sling onto the power point locker....

I have tested the strength of the swages by pulling apart several of these cables using a ton and a half chain come a long.. Each cable was tested until it broke, every cable tested broke in the center between the two swages, not once did the cable part in the eye, nor did a single swage slip... These results lead me to conclude that the 'draw' is equal to full breaking strength of the cable used to construct it....

I would simply use a FROST power draw if I didn't have the capability to make my own... I constructed my own using the same techniques and materials, with the small addition of 'cozies' added to each eye to prevent my draw from digging into the softer aluminum of the power point locker.

I have increased the size of the cable used to 5/32", I'm using 7x19 stainless steel cable for increased rotational flexibility, The cable has a rated breaking strength of 2,700lbs, Well over the the 22kn of standard slings, I'll also be using two of my draws for redundancy... Effectively doubleing the breaking strength....

I would simply use a FROST power draw if I didn't have the capability to make my own... I constructed my own using the same techniques and materials, with the small addition of 'cozies' added to each eye to prevent my draw from digging into the softer aluminum of the power point locker.

I have increased the size of the cable used to 5/32", I'm using 7x19 stainless steel cable for increased rotational flexibility, The cable has a rated breaking strength of 2,700lbs, Well over the the 22kn of standard slings, I'll also be using two of my draws for redundancy... Effectively doubleing the breaking strength....

My power point locker will blow before this ever does

Sounds good to me. Let us know how it works. I'm not sure the bolded part is true, however. Isn't 22kN more like 5000 lbs-force? Not that it's really an issue.

I have increased the size of the cable used to 5/32", I'm using 7x19 stainless steel cable for increased rotational flexibility, The cable has a rated breaking strength of 2,700lbs, I'll also be using two of my draws for redundancy... Effectively doubleing the breaking strength, Well over the the 22kn of standard slings....

I have increased the size of the cable used to 5/32", I'm using 7x19 stainless steel cable for increased rotational flexibility, The cable has a rated breaking strength of 2,700lbs, I'll also be using two of my draws for redundancy... Effectively doubleing the breaking strength, Well over the the 22kn of standard slings....

Now it sounds like overkill!

If it were me I'd just spend the $5 on a FROST draw or a 6" sling, but homemade gear is cool.